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Night reading instrument

A technology of night reading instrument and light guide plate, applied in the field of night reading instrument, can solve the problems of light and dark shadows, uneven and soft light guide, readers' eyestrain, etc., and achieve the effect of reducing influence, uniform and soft light, and avoiding a large amount of scattering

Inactive Publication Date: 2007-01-24
周岳泉
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Problems solved by technology

[0004] However, in this kind of night reader, the transmission of light is naturally transmitted by the air in the middle of the upper and lower transparent plates, and there is no other solid medium. Therefore, the light guide is uneven and soft, which makes it possible for the light to read documents. There are light and dark shadows, which will cause readers' visual fatigue over time

Method used

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Embodiment Construction

[0026] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

[0027] like Figure 1 to Figure 9 As shown, the night reader includes a casing, the casing includes an upper casing 1 and a lower casing 7, and the upper and lower reflectors 2 and 5 and the illuminator 3 are arranged in the casing, between the upper and lower reflectors. A light guide plate 3 is also provided. The light guide plate 3 can be made of high-transparency PMMA engineering plastics and manufactured by mirror technology. The light guide plate 3 has the function of guiding light. When the light source emits light, the light guide plate 3 guides the light beam from the two sides of the night reader into the night reader, so that it reflects irregularly, the light flow fills the light guide plate 3, and the light guide plate 3 guides the light in parallel. Light. In order to achieve guided reflection, a refraction angle 11 may be se...

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Abstract

The apparatus for night reading includes shell body as well as up and low reflection shields, and illuminant. Characters are that light guiding plates are setup between up and low reflection shields. Peripheral parts of up and low reflection shields are setup in refraction angles. Peripheral parts of light guiding plate are setup in refraction angles. Comparing with prior art, the invention prevents lots of light beams from dissipation caused by light guiding plates and reflection shields setup. Moreover, random reflection by light guiding plates, and refraction effect by reflection shields make beams even and softness within view window. The disclosed apparatus can reduce asthenopia of readers.

Description

technical field [0001] The present invention relates to a lighting device, in particular to a night reading device which is convenient for studying and living at night or in a dimly lit environment. Background technique [0002] At present, the proportion of myopia patients in my country is getting higher and higher, especially the younger age of juvenile myopia patients. A considerable proportion of myopia patients are related to reading at night. Due to insufficient ambient light, or the distance between the eyes and the books and periodicals is too close when reading, coupled with the influence of ultraviolet, electromagnetic wave radiation and other factors, in this way, using the eyes at close distances and high-intensity eyes will cause visual fatigue. If you are tired for a long time If the condition is not relieved and adjusted, it will easily lead to spasm of the ciliary muscle, thereby squeezing the capillaries in the eye, leading to microcirculation disturbance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S6/00F21V3/00F21V8/00F21Y101/02F21Y115/10
Inventor 周岳泉
Owner 周岳泉
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